<!DOCTYPE html>
<html>
<head>
    <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
</head>
<body>

<h1 id="title">我的第一个标题</h1>

<p>我的第一个段落。</p>
<div>
    <input name="verifyCode" type="text" class="form-control" style="width: 50%" required>
    <button type="button" id="verifyCodeButton" class="btn btn-default" style="width: 30%"
            onclick="getVerifyCode()">
        点击获取验证码
    </button>
    <div class="col-sm-6"></div>
    <div class="col-sm-4">

    </div>
</div>
<script type="text/javascript">

</script>
</body>
</html>